Burner.



l Patented 1an. le, |900. o. BRUNLEB.

B U R N E B.

(Appliestion led Oct. 31, 1898.)

(Ho Model.)

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NITED STATES PATENT OEEIcEa OSCAR BRNLER, OF EILENBURG, GERMANY.

BURNER.

SPECIFICATION forming part of Letters Patent N o. 641,368, dated January16, 1900.

Application filed October 31,1898. Serial No. 695,055. (No model.)

burner has the great advantage that if gas is employed as fuel the airneed not be pressed in, the burner sucking in the air necessary forperfect combustion.

In order to make my invention more easily understood, I have illustratedit on the accompanying drawing, which shows a sectional elevation of myimproved burner.

a is the feed-pipe for the liquid, gaseous, or vpulverized fuel.

b is the air-introduction pipe.

The fuel-feed pipe a runs out into a nozzle d, the opening of which canbe closed more or less, according to the amount of fuel to pass out ofit, by the cylindrical rodarJ being raised or lowered Within the saidpipe a and nozzle d. The nozzle d is surrounded by a hollow somewhatcone-shaped casing or mantle c, and this latter is surrounded by themantle n. Between the nozzle and the mantle c and between this latterand the outer mantle n annular spaces o and g, respectively, are formed,through which the air entering through pipe h can freely pass. Thecasing or mantle c runs out into a bulb-shaped casing lo, being providedwith a number of elongated slots f and ribs f'. The annular space c',formed between this casing and the outer wall p of the apparatus, is incommunication with the annular space g. .At the constricted portion ofthe mantle c a short piece of pipe h is provided, giving access fromWithout to the interior of the igniting-chamber e.

For starting ignition the flame ofa soldering-lamp or a gas-blast isintroduced through the pipe h into the chamber e, with the effect ofheating the burner and setting up ignition. After the burner is heatedto the desired degree the lamp or gas ame is removed and the pipe h isto be plugged up. `The burner will now steadily keep up ignition on itsown accord.

If liquid or pulverized fuel is made use of, pressure-air must beintroduced through pipe Part of the air entering through pipe b may takeits course through the annular space g in order to attain the highesttemperature in the annular space e' and not within the chamber c. Acolumn of liame will be projected out of the opening Z into thecompartment not containing or having at least no dii rect communicationwith the atmosphere.

What I claim, and desire to secure by Letters Patent, is-

Ina burner for gaseous, liquid or pulverized fuel the combination` ofthe fuel-nozzle d, a casing c surrounding said nozzle and extend ingbeyond the same, said casing terminating in a bulb-shaped enlargementlo, having slots iu the walls thereof, a casing fn surrounding thecasing c and enlargement oand an aira inlet b adapted to supply air tothe casing c and to the space between the casing c and the casing n,substantially as and for the purpose set forth.

OSCAR BRUN LER. Witnesses:

RUDOLPH FEICKE, B. H. WARNER, Jr.

